package com.lagou.dao;

import com.lagou.annotion.MyAutowired;
import com.lagou.annotion.MyService;
import com.lagou.pojo.Account;
import com.lagou.utils.ConnectionUtils;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

/**
 * @Author ZHAO Yudong
 * @Date 2020/11/6 14:19
 * @description：
 */
@MyService("AccountDao")
public class AccountDaoImpl implements AccountDao {

	@MyAutowired
	private ConnectionUtils connectionUtils;

	public void setConnectionUtils(ConnectionUtils connectionUtils) {
		this.connectionUtils = connectionUtils;
	}

	@Override
	public Account queryAccountByCardNo(String cardNo) throws Exception {
		//从连接池获取连接
		// Connection con = DruidUtils.getInstance().getConnection();
		Connection con = connectionUtils.getCurrentThreadConn();
		String sql = "select * from account where cardNo=?";
		PreparedStatement preparedStatement = con.prepareStatement(sql);
		preparedStatement.setString(1, cardNo);
		ResultSet resultSet = preparedStatement.executeQuery();

		Account account = new Account();
		while (resultSet.next()) {
			account.setCardNo(resultSet.getString("cardNo"));
			account.setName(resultSet.getString("name"));
			account.setMoney(resultSet.getInt("money"));
		}

		resultSet.close();
		preparedStatement.close();
		//con.close();

		return account;
	}

	@Override
	public int updateAccountByCardNo(Account account) throws Exception {

		// 从连接池获取连接
		// 改造为：从当前线程当中获取绑定的connection连接
		//Connection con = DruidUtils.getInstance().getConnection();
		Connection con = connectionUtils.getCurrentThreadConn();
		String sql = "update account set money=? where cardNo=?";
		PreparedStatement preparedStatement = con.prepareStatement(sql);
		preparedStatement.setInt(1, account.getMoney());
		preparedStatement.setString(2, account.getCardNo());
		int i = preparedStatement.executeUpdate();

		preparedStatement.close();
		//con.close();
		return i;
	}

	@Override
	public void text() {
		System.out.println(123);
	}
}
